UIButton 图片文字位置

在实际开发过程中经常在按钮上添加文字和图片，位置和图片的位置根据需求放置也是不一样的。下面实现了各种显示方式，如下图：

UIButton+LSAdditions.h

//
//  UIButton+LSAdditions.h
//  ZLBiPhone
//
//  Created by xujinzhong on 18/3/14.
//  Copyright (c) 2018年 xujinzhong. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface UIButton (LSAdditions)

//设置背景颜色
- (void)setBackgroundColor:(UIColor *)backgroundColor forState:(UIControlState)state;

#pragma mark 按钮图片标题显示位置
//上下居中，图片在上，文字在下
- (void)verticalCenterImageAndTitle:(CGFloat)spacing;
- (void)verticalCenterImageAndTitle; //默认6.0

//左右居中，文字在左，图片在右
- (void)horizontalCenterTitleAndImage:(CGFloat)spacing;
- (void)horizontalCenterTitleAndImage; //默认6.0

//左右居中，图片在左，文字在右
- (void)horizontalCenterImageAndTitle:(CGFloat)spacing;
- (void)horizontalCenterImageAndTitle; //默认6.0

//文字居中，图片在左边
- (void)horizontalCenterTitleAndImageLeft:(CGFloat)spacing;
- (void)horizontalCenterTitleAndImageLeft; //默认6.0

//文字居中，图片在右边
- (void)horizontalCenterTitleAndImageRight:(CGFloat)spacing;
- (void)horizontalCenterTitleAndImageRight; //默认6.0

@end

UIButton+LSAdditions.m

//
//  UIButton+LSAdditions.m
//  ZLBiPhone
//
//  Created by xujinzhong on 18/6/14.
//  Copyright (c) 2018年 xujinzhong. All rights reserved.
//

#import "UIButton+LSAdditions.h"

@implementation UIButton (LSAddtions)

/**
 *  添加按钮的背景颜色
 *
 *  @return
 */
- (void)setBackgroundColor:(UIColor *)backgroundColor forState:(UIControlState)state {
    [self setBackgroundImage:[UIButton imageWithColor:backgroundColor] forState:state];
}

+ (UIImage *)imageWithColor:(UIColor *)color {
    CGRect rect = CGRectMake(0.0f, 0.0f, 1.0f, 1.0f);
    UIGraphicsBeginImageContext(rect.size);
    CGContextRef context = UIGraphicsGetCurrentContext();
    
    CGContextSetFillColorWithColor(context, [color CGColor]);
    CGContextFillRect(context, rect);
    
    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    
    return image;
}

/**
 *  判断按钮是否按下
 *
 *  @return
 */
-(BOOL)isExclusiveTouch
{
    return YES;
}

#pragma mark 按钮图片标题显示位置
- (void)verticalCenterImageAndTitle:(CGFloat)spacing
{
    CGSize imageSize = self.imageView.frame.size;
    CGSize titleSize = self.titleLabel.frame.size;

    self.titleEdgeInsets = UIEdgeInsetsMake(0.0, - imageSize.width, - (imageSize.height + spacing/2), 0.0);

    titleSize = self.titleLabel.frame.size;

    self.imageEdgeInsets = UIEdgeInsetsMake(- (titleSize.height + spacing/2), 0.0, 0.0, - titleSize.width);
}

- (void)verticalCenterImageAndTitle
{
    const int DEFAULT_SPACING = 6.0f;
    [self verticalCenterImageAndTitle:DEFAULT_SPACING];
}

- (void)horizontalCenterTitleAndImage:(CGFloat)spacing
{
    CGSize imageSize = self.imageView.frame.size;
    CGSize titleSize = self.titleLabel.frame.size;

    self.titleEdgeInsets = UIEdgeInsetsMake(0.0, - imageSize.width, 0.0, imageSize.width + spacing/2);

    titleSize = self.titleLabel.frame.size;

    self.imageEdgeInsets = UIEdgeInsetsMake(0.0, titleSize.width + spacing/2, 0.0, - titleSize.width);
}

- (void)horizontalCenterTitleAndImage
{
    const int DEFAULT_SPACING = 6.0f;
    [self horizontalCenterTitleAndImage:DEFAULT_SPACING];
}


- (void)horizontalCenterImageAndTitle:(CGFloat)spacing;
{
    self.titleEdgeInsets = UIEdgeInsetsMake(0.0,  0.0, 0.0,  - spacing/2);
    self.imageEdgeInsets = UIEdgeInsetsMake(0.0, - spacing/2, 0.0, 0.0);
}

- (void)horizontalCenterImageAndTitle;
{
    const int DEFAULT_SPACING = 6.0f;
    [self horizontalCenterImageAndTitle:DEFAULT_SPACING];
}


- (void)horizontalCenterTitleAndImageLeft:(CGFloat)spacing
{
    self.imageEdgeInsets = UIEdgeInsetsMake(0.0, - spacing, 0.0, 0.0);
}

- (void)horizontalCenterTitleAndImageLeft
{
    const int DEFAULT_SPACING = 6.0f;
    [self horizontalCenterTitleAndImageLeft:DEFAULT_SPACING];
}


- (void)horizontalCenterTitleAndImageRight:(CGFloat)spacing
{
    CGSize imageSize = self.imageView.frame.size;
    CGSize titleSize = self.titleLabel.frame.size;

    self.titleEdgeInsets = UIEdgeInsetsMake(0.0, - imageSize.width, 0.0, 0.0);

    titleSize = self.titleLabel.frame.size;

    self.imageEdgeInsets = UIEdgeInsetsMake(0.0, titleSize.width + imageSize.width + spacing, 0.0, - titleSize.width);
}

- (void)horizontalCenterTitleAndImageRight
{
    const int DEFAULT_SPACING = 6.0f;
    [self horizontalCenterTitleAndImageRight:DEFAULT_SPACING];
}

@end

现在测试代码如下：

#define ktopDistance 50
#define kwidth  90
#define kheight 50

@interface ViewController ()

@property (nonatomic, strong) UIButton *btnOne;
@property (nonatomic, strong) UIButton *btnTwo;
@property (nonatomic, strong) UIButton *btnThree;
@property (nonatomic, strong) UIButton *btnFour;
@property (nonatomic, strong) UIButton *btnFive;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    self.view.backgroundColor = [UIColor cyanColor];
    
    CGFloat spacing = 2.f;
    
    //上下居中，图片在上，文字在下
    [self.btnOne verticalCenterImageAndTitle:spacing];
    [self.btnOne verticalCenterImageAndTitle]; //默认6.0
    
    //左右居中，文字在左，图片在右
    [self.btnTwo horizontalCenterTitleAndImage:spacing];
    [self.btnTwo horizontalCenterTitleAndImage]; //默认6.0
    
    //左右居中，图片在左，文字在右
    [self.btnThree horizontalCenterImageAndTitle:spacing];
    [self.btnThree horizontalCenterImageAndTitle]; //默认6.0
    
    //文字居中，图片在左边
    [self.btnFour horizontalCenterTitleAndImageLeft:spacing];
    [self.btnFour horizontalCenterTitleAndImageLeft]; //默认6.0
    
    //文字居中，图片在右边
    [self.btnFive horizontalCenterTitleAndImageRight:spacing];
    [self.btnFive horizontalCenterTitleAndImageRight]; //默认6.0 
}

-(UIButton *)btnOne{
    if (!_btnOne) {
        _btnOne = [UIButton new];
        _btnOne.backgroundColor = [UIColor grayColor];
        _btnOne.layer.cornerRadius = 3.f;
        _btnOne.layer.masksToBounds = YES;
        [_btnOne setTitle:@"left" forState:UIControlStateNormal];
        [_btnOne setImage:[UIImage imageNamed:@"success"] forState:UIControlStateNormal];
        [_btnOne setTitleColor:[UIColor brownColor] forState:UIControlStateNormal];
        [self.view addSubview:_btnOne];
        
        [_btnOne mas_makeConstraints:^(MASConstraintMaker *make) {
            make.top.offset(100);
            make.centerX.equalTo(self.view);
            make.width.offset(kwidth);
            make.height.offset(kheight);
        }];
    }
    return _btnOne;
}

-(UIButton *)btnTwo{
    if (!_btnTwo) {
        _btnTwo = [UIButton new];
        _btnTwo.backgroundColor = [UIColor grayColor];
        _btnTwo.layer.cornerRadius = 3.f;
        _btnTwo.layer.masksToBounds = YES;
        [_btnTwo setTitle:@"left" forState:UIControlStateNormal];
        [_btnTwo setImage:[UIImage imageNamed:@"success"] forState:UIControlStateNormal];
        [_btnTwo setTitleColor:[UIColor brownColor] forState:UIControlStateNormal];
        [self.view addSubview:_btnTwo];
        
        [_btnTwo mas_makeConstraints:^(MASConstraintMaker *make) {
            make.top.equalTo(self.btnOne.mas_bottom).offset(ktopDistance);
            make.centerX.equalTo(self.view);
            make.width.offset(kwidth);
            make.height.offset(kheight);
        }];
    }
    return _btnTwo;
}

-(UIButton *)btnThree{
    if (!_btnThree) {
        _btnThree = [UIButton new];
        _btnThree.backgroundColor = [UIColor grayColor];
        _btnThree.layer.cornerRadius = 3.f;
        _btnThree.layer.masksToBounds = YES;
        [_btnThree setTitle:@"left" forState:UIControlStateNormal];
        [_btnThree setImage:[UIImage imageNamed:@"success"] forState:UIControlStateNormal];
        [_btnThree setTitleColor:[UIColor brownColor] forState:UIControlStateNormal];
        [self.view addSubview:_btnThree];
        
        [_btnThree mas_makeConstraints:^(MASConstraintMaker *make) {
            make.top.equalTo(self.btnTwo.mas_bottom).offset(ktopDistance);
            make.centerX.equalTo(self.view);
            make.width.offset(kwidth);
            make.height.offset(kheight);
        }];
    }
    return _btnThree;
}

-(UIButton *)btnFour{
    if (!_btnFour) {
        _btnFour = [UIButton new];
        _btnFour.backgroundColor = [UIColor grayColor];
        _btnFour.layer.cornerRadius = 3.f;
        _btnFour.layer.masksToBounds = YES;
        [_btnFour setTitle:@"left" forState:UIControlStateNormal];
        [_btnFour setImage:[UIImage imageNamed:@"success"] forState:UIControlStateNormal];
        [_btnFour setTitleColor:[UIColor brownColor] forState:UIControlStateNormal];
        [self.view addSubview:_btnFour];
        
        [_btnFour mas_makeConstraints:^(MASConstraintMaker *make) {
            make.top.equalTo(self.btnThree.mas_bottom).offset(ktopDistance);
            make.centerX.equalTo(self.view);
            make.width.offset(kwidth);
            make.height.offset(kheight);
        }];
    }
    return _btnFour;
}

-(UIButton *)btnFive{
    if (!_btnFive) {
        _btnFive = [UIButton new];
        _btnFive.backgroundColor = [UIColor grayColor];
        _btnFive.layer.cornerRadius = 3.f;
        _btnFive.layer.masksToBounds = YES;
        [_btnFive setTitle:@"left" forState:UIControlStateNormal];
        [_btnFive setImage:[UIImage imageNamed:@"success"] forState:UIControlStateNormal];
        [_btnFive setTitleColor:[UIColor brownColor] forState:UIControlStateNormal];
        [self.view addSubview:_btnFive];
        
        [_btnFive mas_makeConstraints:^(MASConstraintMaker *make) {
            make.top.equalTo(self.btnFour.mas_bottom).offset(ktopDistance);
            make.centerX.equalTo(self.view);
            make.width.offset(kwidth);
            make.height.offset(kheight);
        }];
    }
    return _btnFive;
}

@end